Improvement in re-winnowing attachments for thrashers



PATENT VJOHN B. PADON, OF TROY, ILLINOIS.

IMPROVEMENT IN RE-WINNOWING ATTACHMENTS FOR THRASHERS.

Specification forming part of Letters Patent No. l36,l75, dated February 25, 1873.

To all whom it may concern:

Be it known that I,- JoHN'B. PADON, of Troy, Madison county, Stat-e of Illinois, have invented a new and usefulY Attachment for Grain-Separators and Thrashing-Machines, of which the following is a full, clear, and eX- act description, reference being had to the annexed drawing making a part of this specificat-ion, in which-4 Figure 1 represents a top plan of same. Fig. 2 represents a longitudinal sectional View lof same.

by asuftcient number of cross-pieces, and` having between them a perforated bed, B.

This bed is preferably, in order to save weight, made of wood covered with sheet metal on its upper surface, the metal and wood being perforated, as seen, the perforations being made sufficiently large to'allow the grain to pass readily through them, and being couutersunk on the upper surface so as to present a somewhat roughened bed to the passing straw, and thereby more surely catching the grain in the straw. At either end of the frame is a shaft, d d', the former having upon it four pulleys or rollers, e e c e, the two former being outside of the side pieces, while the latter are inside, while on d are two rollers, g g, both inside of the side pieces. On the rollers c e and g g are two endless belts, h h, connected by slats k lc 7c", 85o., these belts also passing under the roller m, Fig. 2, beneath the frame, and having its bearings in the arms n n', Fig. l, attached to the side pieces. These arms a n also aiford bearings to the shaft 0, Fig. 2, of the fan D, the shaft having on either end a pulley, p p', Fig. 1, and the fan being inclosed by a covering, s, as seen in Fig. 2. Beneath the bed B, and having its bearings in the side pieces, is the shaft t of the 'worm E, Figs. 1, 2, inclosed as seen in Fig. 2. The side pieces a a are made with an offset, as seen in Fig. 2,

so that the plate w, which connects the lower edge of the end of the frame, is above the plate a', which connects the lower edge of the remainder of the frame, there being a space between the bed B and the plate w, and a considerably broader or deeper space between such bed and the plate zr.

This frame is attached in any suitable manner to the thrashing-machine directly beneath the chute or other device, through which the straw is discharged after being thrashed, in such manner that this straw shall fall upon the bars of the endless belts, the apparatus being set at, say, an angle of forty-tive degrees. The pulley e is connected by a belt with the power driving the thrasher, which thus drives the belts, and, by means. of a belt, z, connecting the pulleys e and the pulley p on the end of the fan-shaft, sets the fan in motion, a belt, b, on the other end of Y the fan-shaft communicating motion to the pulley of the worm-shaft t. The straw then falling upon the bars k k, &c., is carried along and thrown from the upper end of the frame into the receptacle placed beneath it to receive it; but in its course over the bed B it drops the grain not already thrashed or separated from it through the openings in the bed onto the plates w and w, whence it falls into the well of the worm E, which by its motion expels it at the side of the frame at H, Fig. l, The fan D, being in rapid motion, blows the chaff and otherrimpurities through the opening G between the plates as and w. The continual dropping of the straw 'on the bars k k, &;c., gives them a vibratory movement, thus aiding in freeing the grain from the straw. u

As already stated, this apparatus is attached to .the thrasher or separator in any suitable manner, and, if desired, it may be rendered adjustable to any desired angle byl a very obvious and simple arrangement of pulleys. In general, however, I iind that at an angle of forty-live degrees the apparatus gives the best results.

hat I claim as my invention, and desire to secure by Letters Patent, is

The frame A, perforated bed B, plates :r and w, belts h h having bars lc 7c', &c., fan D, worm E, and operating-pulleys, the several parts being combined, constructed, and arranged for joint operation substantially as shown and specified.

Witnesses: JOHN B. PADON..

ANDREW KIMBERLIN, JOHN lt. WHITEsiDn. 

